#define IO_READ(addr) (*(volatile unsigned int *)(addr))
/*
- * IntegratorCP has two UARTs, use the first one, at 38400-8-N-1
+ * IntegratorCP has two UARTs, use the first one, at 38400-8-N-1
* Versatile PB has four UARTs.
*/
#define NUM_PORTS 2
#define CONSOLE_PORT CONFIG_CONS_INDEX
#define baudRate CONFIG_BAUDRATE
-static volatile unsigned char * const port[NUM_PORTS] = {(void*)(CFG_SERIAL0),
- (void*)(CFG_SERIAL1)};
+static volatile unsigned char *const port[NUM_PORTS] = {
+ (void *) (CFG_SERIAL0),
+ (void *) (CFG_SERIAL1)
+};
-static void pl011_putc(int portnum, char c);
-static int pl011_getc(int portnum);
-static int pl011_tstc(int portnum);
+static void pl011_putc (int portnum, char c);
+static int pl011_getc (int portnum);
+static int pl011_tstc (int portnum);
int serial_init (void)
{
- unsigned int temp;
- unsigned int divider;
- unsigned int remainder;
- unsigned int fraction;
-
- /*
- ** First, disable everything.
- */
- IO_WRITE(port[CONSOLE_PORT] + UART_PL011_CR, 0x0);
-
- /*
- ** Set baud rate
- **
- ** IBRD = UART_CLK / (16 * BAUD_RATE)
- ** FBRD = ROUND((64 * MOD(UART_CLK,(16 * BAUD_RATE))) / (16 * BAUD_RATE))
- */
+ unsigned int temp;
+ unsigned int divider;
+ unsigned int remainder;
+ unsigned int fraction;
+
+ /*
+ ** First, disable everything.
+ */
+ IO_WRITE (port[CONSOLE_PORT] + UART_PL011_CR, 0x0);
+
+ /*
+ ** Set baud rate
+ **
+ ** IBRD = UART_CLK / (16 * BAUD_RATE)
+ ** FBRD = ROUND((64 * MOD(UART_CLK,(16 * BAUD_RATE))) / (16 * BAUD_RATE))
+ */
#ifdef CONFIG_VERSATILE
- temp = 16 * baudRate;
- divider = 24000000 / temp;
- remainder = 24000000 % temp;
- temp = (8 * remainder) / baudRate;
- fraction = (temp >> 1) + (temp & 1);
+ temp = 16 * baudRate;
+ divider = 24000000 / temp;
+ remainder = 24000000 % temp;
+ temp = (8 * remainder) / baudRate;
+ fraction = (temp >> 1) + (temp & 1);
#endif
#ifdef CONFIG_INTEGRATOR
- temp = 16 * baudRate;
- divider = 14745600 / temp;
- remainder = 14745600 % temp;
- temp = (8 * remainder) / baudRate;
- fraction = (temp >> 1) + (temp & 1);
+ temp = 16 * baudRate;
+ divider = 14745600 / temp;
+ remainder = 14745600 % temp;
+ temp = (8 * remainder) / baudRate;
+ fraction = (temp >> 1) + (temp & 1);
#endif
-
- IO_WRITE(port[CONSOLE_PORT] + UART_PL011_IBRD, divider);
- IO_WRITE(port[CONSOLE_PORT] + UART_PL011_FBRD, fraction);
-
- /*
- ** Set the UART to be 8 bits, 1 stop bit, no parity, fifo enabled.
- */
- IO_WRITE(port[CONSOLE_PORT] + UART_PL011_LCRH,
- (UART_PL011_LCRH_WLEN_8 | UART_PL011_LCRH_FEN));
-
- /*
- ** Finally, enable the UART
- */
- IO_WRITE(port[CONSOLE_PORT] + UART_PL011_CR,
- (UART_PL011_CR_UARTEN | UART_PL011_CR_TXE | UART_PL011_CR_RXE));
-
- return (0);
+
+ IO_WRITE (port[CONSOLE_PORT] + UART_PL011_IBRD, divider);
+ IO_WRITE (port[CONSOLE_PORT] + UART_PL011_FBRD, fraction);
+
+ /*
+ ** Set the UART to be 8 bits, 1 stop bit, no parity, fifo enabled.
+ */
+ IO_WRITE (port[CONSOLE_PORT] + UART_PL011_LCRH,
+ (UART_PL011_LCRH_WLEN_8 | UART_PL011_LCRH_FEN));
+
+ /*
+ ** Finally, enable the UART
+ */
+ IO_WRITE (port[CONSOLE_PORT] + UART_PL011_CR,
+ (UART_PL011_CR_UARTEN | UART_PL011_CR_TXE |
+ UART_PL011_CR_RXE));
+
+ return (0);
}
-void
-serial_putc(const char c)
+void serial_putc (const char c)
{
if (c == '\n')
- pl011_putc(CONSOLE_PORT, '\r');
+ pl011_putc (CONSOLE_PORT, '\r');
- pl011_putc(CONSOLE_PORT, c);
+ pl011_putc (CONSOLE_PORT, c);
}
-void
-serial_puts (const char *s)
+void serial_puts (const char *s)
{
while (*s) {
serial_putc (*s++);
}
}
-int
-serial_getc(void)
+int serial_getc (void)
{
- return pl011_getc(CONSOLE_PORT);
+ return pl011_getc (CONSOLE_PORT);
}
-int
-serial_tstc(void)
+int serial_tstc (void)
{
- return pl011_tstc(CONSOLE_PORT);
+ return pl011_tstc (CONSOLE_PORT);
}
-void
-serial_setbrg (void)
+void serial_setbrg (void)
{
}
-static void pl011_putc(int portnum, char c)
+static void pl011_putc (int portnum, char c)
{
- /* Wait until there is space in the FIFO */
- while (IO_READ(port[portnum] + UART_PL01x_FR) & UART_PL01x_FR_TXFF);
-
- /* Send the character */
- IO_WRITE(port[portnum] + UART_PL01x_DR, c);
+ /* Wait until there is space in the FIFO */
+ while (IO_READ (port[portnum] + UART_PL01x_FR) & UART_PL01x_FR_TXFF);
+
+ /* Send the character */
+ IO_WRITE (port[portnum] + UART_PL01x_DR, c);
}
-static int pl011_getc(int portnum)
+static int pl011_getc (int portnum)
{
- unsigned int data;
-
- /* Wait until there is data in the FIFO */
- while (IO_READ(port[portnum] + UART_PL01x_FR) & UART_PL01x_FR_RXFE);
-
- data = IO_READ(port[portnum] + UART_PL01x_DR);
-
- /* Check for an error flag */
- if (data & 0xFFFFFF00)
- {
- /* Clear the error */
- IO_WRITE(port[portnum] + UART_PL01x_ECR, 0xFFFFFFFF);
- return -1;
- }
-
- return (int)data;
+ unsigned int data;
+
+ /* Wait until there is data in the FIFO */
+ while (IO_READ (port[portnum] + UART_PL01x_FR) & UART_PL01x_FR_RXFE);
+
+ data = IO_READ (port[portnum] + UART_PL01x_DR);
+
+ /* Check for an error flag */
+ if (data & 0xFFFFFF00) {
+ /* Clear the error */
+ IO_WRITE (port[portnum] + UART_PL01x_ECR, 0xFFFFFFFF);
+ return -1;
+ }
+
+ return (int) data;
}
-static int pl011_tstc(int portnum)
+static int pl011_tstc (int portnum)
{
- return !(IO_READ(port[portnum] + UART_PL01x_FR) & UART_PL01x_FR_RXFE);
+ return !(IO_READ (port[portnum] + UART_PL01x_FR) &
+ UART_PL01x_FR_RXFE);
}
#endif
projects / karo-tx-uboot.git / blobdiff